Numbers of form 8^i*9^j, with i, j >= 0.

Terms

a(0) =1a(1) =8a(2) =9a(3) =64a(4) =72a(5) =81a(6) =512a(7) =576a(8) =648a(9) =729a(10) =4096a(11) =4608a(12) =5184a(13) =5832a(14) =6561a(15) =32768a(16) =36864a(17) =41472a(18) =46656a(19) =52488a(20) =59049a(21) =262144a(22) =294912a(23) =331776a(24) =373248a(25) =419904a(26) =472392a(27) =531441a(28) =2097152a(29) =2359296